Angular thermocouple assemblies with bent or welded protection tube (35-WCG) are primarily used for temperature measurement in metal smelting and salt baths.
The angular shape allows for placement of the connector head away from the actual bath/melt in order to avoid direct exposure to high temperatures and aggressive vapours.
As an alternative to the installed thermocouple, numerous angular thermocouple assemblies may be fitted with a mineral-insulated gauge slide, which can have several crucial advantages:
- Optimal protection of the inner conductors from corrosion, oxidation, physical damage, and chemical contamination due to the enclosed structure of the outer insulation.
- Increased stability of the electrical insulation compared to ceramic insulated thermocouples.
In order to ensure functionality of the thermocouple assembly during a suitable timeframe, careful consideration should be used when selecting the materials for thermocouple and protective tube depending on the operating conditions.
Thermoelectric voltages and tolerances of our thermocouples and mineral-insulated gauge slides are pursuant to DIN EN 60584, class 1, for thermocouples and mineral-insulated gauge slides of type L pursuant to DIN 43710.
Recommended Protection Tube Materials in Salt Baths
| Smelter | Maximum Temperature |
Materials |
|---|---|---|
| Tenifer | 600°C | Titan NT |
| Salpetre-, Chloride- and Cyanogen containing Annealing, Tempering and Hardening Baths |
1000°C |
Pure Iron 1.4821 |
Recommended Protection Tube Materials in Metal Smelting
| Smelter | Maximum Temperature |
Materials |
|---|---|---|
| Aluminium | 700°C | SiN SiC |
| Magnesium Al/Mg-Alloys |
700°C | Pure Iron SiN |
| Lead | 600°C | SiN |
| Zinc | 600°C | Pure Iron Steel SiN |
| Copper | 1200°C | 1.4762 Graphite |
| Brass | 900°C | 1.4762 Graphite SiN |
Application Examples for Angle thermocouples with curved or welded pipe:
Choose your language
Leave your number and we’ll call you back
Your direct contact to our team
GÜNTHER GmbH
Temperaturmesstechnik
Bauhofstraße 12
D-90571 Schwaig
info@guenther.eu
Tel. +49 (0)911 / 50 69 95-0
Fax +49 (0)911 / 50 69 95-55